CN107640280A - A kind of super large marine bulb bow renews method - Google Patents
A kind of super large marine bulb bow renews method Download PDFInfo
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- CN107640280A CN107640280A CN201710695462.3A CN201710695462A CN107640280A CN 107640280 A CN107640280 A CN 107640280A CN 201710695462 A CN201710695462 A CN 201710695462A CN 107640280 A CN107640280 A CN 107640280A
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- bulb bow
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Abstract
The used to achieve the above object technical scheme of the present invention is：A kind of super large marine bulb bow renews method, comprises the following steps：A, according to the special removal bracket of Alignment Design original bulb bow of former bulb bow, and the special removal bracket of former bulb bow is manufactured, manufactured according to the special mounting bracket of the new bulb bow of the Alignment Design of new bulb bow, and by the special mounting bracket of new bulb bow；It is an advantage of the invention that：Bracket can be used for multiple times, reequip, and possess a range of versatility.
Description
Technical field
The present invention relates to a kind of super large marine bulb bow to renew method, belongs to shipbuilding technical field.
Background technology
Shipping market dog-eat-dog, shipping business seeks to realize cost efficiency by technological transformation, while global environment deterioration enjoys
Concern, the design of green novel energy source ship and building increasingly are favored by shipowner, are sought development and ship to comply with shipping business
The international main trend of energy-saving and emission-reduction, major shipping company reduction cost of transportation, save the energy to having runed ship by transforming,
Discharge is reduced, by reducing design speed, after bulb bow structure of modification, can reduce by about 8% fuel oil during operation and disappear
Consumption, half a year are recoverable improvement cost, can more create huge economic benefit for a long time, are to the transformation of very large vessel bulb bow
One of important refitting engineer, usually former ship bulb bow is cut off, the bulb bow block of a re-optimization design is installed, at present
The bulb bow replacing options of use need substantial amounts of repairing to be worked with tune type, it is impossible to sealing at once, the ability after tune type terminates
Sealing is carried out, this just increases the engineering time, increases production cost, and efficiency is low.In order to solve above-mentioned difficulties, it is necessary to develop
Engineering time is short, installation safely, help and improve production efficiency, a kind of super large marine bulb bow simple to operate and renew method.
The content of the invention
It is an object of the invention to provide a kind of engineering time is short, installation safely, help and improve production efficiency, simple to operate
Super large marine bulb bow renews method.
The used to achieve the above object technical scheme of the present invention is：A kind of super large marine bulb bow renews method,
Comprise the following steps：
A, according to the special removal bracket of Alignment Design original bulb bow of former bulb bow, and the special removal bracket of former bulb bow is manufactured
Out, according to the special mounting bracket of the new bulb bow of Alignment Design of new bulb bow, and the special mounting bracket of new bulb bow is manufactured
Out；
B, the special removal bracket of former bulb bow is welded by flat car and former bulb bow, then cuts off former bulb bow, on request first
Line of cut is pulled, dismounting is carried out and strengthens preparation, removed according to subregion, it is impossible to all tear sky open, to prevent malformation, then
The former bulb bow of dismounting is hoisted to by the former special removal bracket of bulb bow and former bulb bow whole Transporting to depletion region with crane
Specific region, complete the dismounting operation of former bulb bow；
C, new bulb bow sectional positioning, new bulb bow is divided into 801,803 and 804 segmentations, alignment degree inspection is carried out, first after
Portion breaks forth position in ship without linear portion outer bottom plate, at least takes 10 spacing to be more than 4 meters, hangs vertical from bottom plate position and return to depressed place
Bottom, obtain hull center line by 10 point amendments and lead to below bulb bow, plummet is hung to ground again by ball wall bow outer bottom center
Itself and ship large deviations are checked, each rib position takes a bit, and maximum deviation is no more than 3mm：New bulb bow 801,803 and 804 is segmented
Segmentation links together, outside plate smooth connection, and it is overall for new bulb bow to complete new bulb bow total group in bracket；
D, new bulb bow is integrally allocated and transported together with bracket on the flat car to dock, then is transported by flat car complete to installation site
Into location and installation and welding, the quantity of tack welding is reduced as far as possible, and tack weld has enough height, and its length is to common A
Level steel, should be not less than 30mm, to high strength steel, because being not less than 50mm, and with proof strength, first opening and closing ceasma in welding process, its
Size is Φ 25mm, and the weldering of the second face is being welded first with Φ 3.2mm welding rod bottoming, then the welding rod capping with Φ 4mm, during welding
Before seam, carbon arc air gouging method should be used to carry out back chipping, there should be appropriate bevel shape after back chipping, to carry out back welding, treat
After straight weld is soldered, then stop hole is welded, after being all soldered, fillet in normal shear will be polished, and face of weld there should not be stomata, split
The defects of seam, slag inclusion, the undercut not allowed, overlap and splashing；
E, and then the connection of new bulb bow and bracket is cut open, flat car integrally transports bracket, completes bulb bow and renews.
It is an advantage of the invention that：Bracket can be used for multiple times, reequip, and possess a range of versatility, greatly
The security in installation process is improved, and shortens the time of integrated artistic, it is cost-saved, and construction has been heightened significantly
The security and construction quality of process, it is simple to operate that this renews method, has a wide range of application.
Brief description of the drawings
Fig. 1 is Support bracket fabrication and installation figure.
Fig. 2 is carrying structure schematic diagram.
Fig. 3 is carrying structure schematic top plan view.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is further illustrated.
A kind of super large marine bulb bow renews method, comprises the following steps.
A, according to the special removal bracket of Alignment Design original bulb bow of former bulb bow, and by the special removal bracket of former bulb bow
Manufacture, according to the special mounting bracket of the new bulb bow of the Alignment Design of new bulb bow, and by the special mounting bracket of new bulb bow
Manufacture；
B, the special removal bracket of former bulb bow is welded by flat car and former bulb bow, then cuts off former bulb bow, on request first
Line of cut is pulled, dismounting is carried out and strengthens preparation, removed according to subregion, it is impossible to all tear sky open, to prevent malformation, then
The former bulb bow of dismounting is hoisted to by the former special removal bracket of bulb bow and former bulb bow whole Transporting to depletion region with crane
Specific region, complete the dismounting operation of former bulb bow；
C, new bulb bow sectional positioning, alignment degree inspection is carried out, is first broken forth position in ship without linear portion outer bottom plate according to rear portion,
At least take 10 spacing to be more than 4 meters, hang vertical from bottom plate position and return to dock bottom, obtaining hull center line by 10 point amendments leads to ball
Below nose bow, hanging plummet again by ball wall bow outer bottom center, it takes a bit with ship large deviations, each rib position to ground check, most
Large deviation is no more than 3mm：By new bulb bow rear portion bulk structure, outside plate smooth connection, new bulb bow is completed in bracket
Total group is overall for new bulb bow.
D, new bulb bow is integrally allocated and transported together with bracket on the flat car to dock, then is transported by flat car to installation position
Put completion location and installation and welding, the quantity of tack welding are reduced as far as possible, tack weld has enough height, and its length is to general
Logical A level steel, should be not less than 30mm, to high strength steel, because being not less than 50mm, and with proof strength, first opening and closing ceasma in welding process,
Its size is Φ 25mm, first with Φ 3.2mm welding rod bottoming, then the welding rod capping with Φ 4mm, in the second face of welding during welding
Before weld seam, carbon arc air gouging method should be used to carry out back chipping, there should be appropriate bevel shape after back chipping, to carry out back welding,
After straight weld is soldered, then stop hole is welded, after being all soldered, fillet in normal shear will be polished, and face of weld there should not be stomata, split
The defects of seam, slag inclusion, the undercut not allowed, overlap and splashing.
E, and then the connection of new bulb bow and bracket is cut open, flat car integrally transports bracket, completes bulb bow and renews.
Claims (1)
1. a kind of super large marine bulb bow renews method, it is characterized in that：Comprise the following steps：
A, according to the special removal bracket of Alignment Design original bulb bow of former bulb bow, and the special removal bracket of former bulb bow is manufactured
Out, according to the special mounting bracket of the new bulb bow of Alignment Design of new bulb bow, and the special mounting bracket of new bulb bow is manufactured
Out；
B, the special removal bracket of former bulb bow is welded by flat car and former bulb bow, then cuts off former bulb bow, on request first
Line of cut is pulled, dismounting is carried out and strengthens preparation, removed according to subregion, it is impossible to all tear sky open, to prevent malformation, then
The former bulb bow of dismounting is hoisted to by the former special removal bracket of bulb bow and former bulb bow whole Transporting to depletion region with crane
Specific region, complete the dismounting operation of former bulb bow；
C, new bulb bow sectional positioning, new bulb bow is divided into 801,803 and 804 segmentations, alignment degree inspection is carried out, first after
Portion breaks forth position in ship without linear portion outer bottom plate, at least takes 10 spacing to be more than 4 meters, hangs vertical from bottom plate position and return to depressed place
Bottom, obtain hull center line by 10 point amendments and lead to below bulb bow, plummet is hung to ground again by ball wall bow outer bottom center
Itself and ship large deviations are checked, each rib position takes a bit, and maximum deviation is no more than 3mm：New bulb bow 801,803 and 804 is segmented
Segmentation links together, outside plate smooth connection, and it is overall for new bulb bow to complete new bulb bow total group in bracket；
D, new bulb bow is integrally allocated and transported together with bracket on the flat car to dock, then is transported by flat car complete to installation site
Into location and installation and welding, the quantity of tack welding is reduced as far as possible, and tack weld has enough height, and its length is to common A
Level steel, should be not less than 30mm, to high strength steel, because being not less than 50mm, and with proof strength, first opening and closing ceasma in welding process, its
Size is Φ 25mm, and the weldering of the second face is being welded first with Φ 3.2mm welding rod bottoming, then the welding rod capping with Φ 4mm, during welding
Before seam, carbon arc air gouging method should be used to carry out back chipping, there should be appropriate bevel shape after back chipping, to carry out back welding, treat
After straight weld is soldered, then stop hole is welded, after being all soldered, fillet in normal shear will be polished, and face of weld there should not be stomata, split
The defects of seam, slag inclusion, the undercut not allowed, overlap and splashing；
E, and then the connection of new bulb bow and bracket is cut open, flat car integrally transports bracket, completes bulb bow and renews.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710695462.3A CN107640280A (en) | 2017-08-15 | 2017-08-15 | A kind of super large marine bulb bow renews method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710695462.3A CN107640280A (en) | 2017-08-15 | 2017-08-15 | A kind of super large marine bulb bow renews method |
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| Publication Number | Publication Date |
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| CN107640280A true CN107640280A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710695462.3A Pending CN107640280A (en) | 2017-08-15 | 2017-08-15 | A kind of super large marine bulb bow renews method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773455A (en) * | 2018-06-06 | 2018-11-09 | 广州中船文冲船坞有限公司 | Bulb bow reform technology |
| CN110877705A (en) * | 2019-11-19 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Method for repairing large container bilge ballast tank structure |
| CN114291226A (en) * | 2021-12-20 | 2022-04-08 | 上海中远船务工程有限公司 | Sliding carrying device in irregular curved surface structure segmentation dock |
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| CN103144739A (en) * | 2013-03-11 | 2013-06-12 | 韩通（上海）新能源船舶设计研发有限公司 | Manufacturing method of active separated bulbous bow |
| CN103192952A (en) * | 2013-04-23 | 2013-07-10 | 青岛北海船舶重工有限责任公司 | Vehicular bulbous bow integral-replacing process |
| CN103407546A (en) * | 2013-07-29 | 2013-11-27 | 福建新胜海船业有限公司 | Process for manufacturing bulbous bow in left-right split manner then in combined manner |
| CN104760662A (en) * | 2014-12-19 | 2015-07-08 | 华泰重工(南通)有限公司 | Process for manufacturing ice zone bulbous bow reinforcing structure by sections |
| CN205973418U (en) * | 2016-08-27 | 2017-02-22 | 中船澄西船舶修造有限公司 | Frock is fixed a position in bulb bow segmentation |
| CN106828771A (en) * | 2017-02-09 | 2017-06-13 | 大连中远船务工程有限公司 | Container ship bulb bow block renews installation method |
-
2017
- 2017-08-15 CN CN201710695462.3A patent/CN107640280A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144739A (en) * | 2013-03-11 | 2013-06-12 | 韩通（上海）新能源船舶设计研发有限公司 | Manufacturing method of active separated bulbous bow |
| CN103192952A (en) * | 2013-04-23 | 2013-07-10 | 青岛北海船舶重工有限责任公司 | Vehicular bulbous bow integral-replacing process |
| CN103407546A (en) * | 2013-07-29 | 2013-11-27 | 福建新胜海船业有限公司 | Process for manufacturing bulbous bow in left-right split manner then in combined manner |
| CN104760662A (en) * | 2014-12-19 | 2015-07-08 | 华泰重工(南通)有限公司 | Process for manufacturing ice zone bulbous bow reinforcing structure by sections |
| CN205973418U (en) * | 2016-08-27 | 2017-02-22 | 中船澄西船舶修造有限公司 | Frock is fixed a position in bulb bow segmentation |
| CN106828771A (en) * | 2017-02-09 | 2017-06-13 | 大连中远船务工程有限公司 | Container ship bulb bow block renews installation method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773455A (en) * | 2018-06-06 | 2018-11-09 | 广州中船文冲船坞有限公司 | Bulb bow reform technology |
| CN108773455B (en) * | 2018-06-06 | 2019-06-07 | 广州中船文冲船坞有限公司 | Bulb bow reform technology |
| CN110877705A (en) * | 2019-11-19 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Method for repairing large container bilge ballast tank structure |
| CN110877705B (en) * | 2019-11-19 | 2022-06-10 | 沪东中华造船(集团)有限公司 | Method for repairing ballast tank structure of bilge part of large container ship |
| CN114291226A (en) * | 2021-12-20 | 2022-04-08 | 上海中远船务工程有限公司 | Sliding carrying device in irregular curved surface structure segmentation dock |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180130 |
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| RJ01 | Rejection of invention patent application after publication |